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[pwc] Can't use my webcam

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Subject: [pwc] Can't use my webcam
From: Dirk Vornheder <>
Date: Thu, 3 Nov 2005 17:55:34 +0100
Hi !

After download and install latest pwc driver i can't use my webcam Philips 

PCVC750K.

If i plugin my webcam i get the following messages:

Nov  3 16:43:09 pcneu kernel: usb 4-1.4: new full speed USB device using 
ehci_hcd and address 10
Nov  3 16:43:11 pcneu kernel: pwc Philips webcam module version 
10.0.9rc1-unofficial loaded.
Nov  3 16:43:11 pcneu kernel: pwc Supports Philips PCA645/646, 
PCVC675/680/690, PCVC720[40]/730/740/750 & PCVC830/840.
Nov  3 16:43:11 pcneu kernel: pwc Also supports the Askey VC010, various 
Logitech Quickcams, Samsung MPC-C10 and MPC-C30,
Nov  3 16:43:11 pcneu kernel: pwc the Creative WebCam 5 & Pro Ex, SOTEC Afina 
Eye and Visionite VCS-UC300 and VCS-UM100.
Nov  3 16:43:11 pcneu kernel: pwc Trace options: 0x00a1
Nov  3 16:43:11 pcneu kernel: pwc Philips PCVC750K (ToUCam Pro Scan) USB 
webcam detected.
Nov  3 16:43:12 pcneu kernel: pwc Registered as /dev/video1.
Nov  3 16:43:12 pcneu kernel: usbcore: registered new driver Philips webcam

> ls -l /dev/video1
crw-rw----  1 root video 81, 1 2005-11-03 16:43 /dev/video1

If i start camstream i can only select my dvb card.

My webcam doesn't appear in the list but i get the following messages:

Nov  3 16:44:26 pcneu kernel: pwc Failed to set LED on/off time.
Nov  3 16:44:26 pcneu kernel: pwc set_video_mode(176x144 @ 10, palette 15).
Nov  3 16:44:26 pcneu kernel: pwc decode_size = 1.
Nov  3 16:44:26 pcneu kernel: pwc Using alternate setting 1.
Nov  3 16:44:26 pcneu kernel: pwc Failed to set video mode  fps; return 
code = -32
Nov  3 16:44:26 pcneu kernel: pwc set_video_mode(160x120 @ 10, palette 15).
Nov  3 16:44:26 pcneu kernel: pwc decode_size = 1.
Nov  3 16:44:26 pcneu kernel: pwc Using alternate setting 1.
Nov  3 16:44:26 pcneu kernel: pwc Failed to set video mode  fps; return 
code = -32

Using setpwc fails:

> setpwc -p -d /dev/video1
setpwc v1.0, (C) 2003-2005 by 
Error while accessing device /dev/video1: Broken pipe

Nov  3 17:11:33 pcneu kernel: pwc Failed to set LED on/off time.
Nov  3 17:11:33 pcneu kernel: pwc set_video_mode(176x144 @ 10, palette 15).
Nov  3 17:11:33 pcneu kernel: pwc decode_size = 1.
Nov  3 17:11:33 pcneu kernel: pwc Using alternate setting 1.
Nov  3 17:11:33 pcneu kernel: pwc Failed to set video mode  fps; return 
code = -32
Nov  3 17:11:33 pcneu kernel: pwc set_video_mode(160x120 @ 10, palette 15).
Nov  3 17:11:33 pcneu kernel: pwc decode_size = 1.
Nov  3 17:11:33 pcneu kernel: pwc Using alternate setting 1.
Nov  3 17:11:33 pcneu kernel: pwc Failed to set video mode  fps; return 
code = -32

> lsusb
Bus 004 Device 011: ID 0471:0312 Philips PCVC750K WebCam [pwc]
Bus 004 Device 002: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 USB-2.0 
"TetraHub"
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 002: ID 04b4:1002 Cypress Semiconductor Corp. CY7C63001 R100 FM 
Radio
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 003: ID 057c:2200 AVM GmbH
Bus 002 Device 002: ID 0c4b:0100 Reiner SCT Kartensysteme GmbH cyberJack 
e-com/pinpad
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 004: ID 07b8:4002 D-Link Corp. DU-E100 Ethernet [pegasus]
Bus 001 Device 001: ID 0000:0000

Dirk
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